p-n异质结BiPO4/Ag3PO4的制备及其增强的模拟太阳光活性

采用一步水热合成法制备了BiPO₄、Ag₃PO₄和BiPO₄/Ag₃PO₄复合光催化剂,通过X射线粉末衍射（XRD）、X射线光电子能谱（XPS）、扫描电子显微镜（SEM）、紫外-可见漫反射（UV-Vis DRS）等表征手段对其组成结构、形貌及光吸收性质进行了表征,结果表明Ag₃PO₄呈块状结构,BiPO₄则分布在其表面,形成的BiPO₄/Ag₃PO₄复合光催化剂具有单斜相和立方晶相结构,带边吸收拓宽至571 nm。以甲基橙和加替沙星为目标污染物,考察了BiPO₄/Ag₃PO₄复合光催化剂在模拟太阳光照射下的降解矿化能力,结果表明复合催化剂比单一催化剂的降解矿化能力更强,稳定性更好。此外,自由基捕获实验表明空穴是该光催化过程中的主要活性物种,·O₂^-次之。p-n异质结的形成使BiPO₄/Ag₃PO₄复合光催化剂具有较强的电子空穴分离能力是光催化活性提高的主要原因,这与光电流和电化学阻抗谱测试结果相一致。基于以上结果,文中对BiPO₄/Ag₃PO₄光催化降解有机污染物的机理进行了推测。     

The enhanced photo-stability of defective Ag3PO4 tetrahedron prepared using tripolyphosphate

Ag₃PO₄ is an excellent photocatalyst under visible light irradiation. However, the low stability due to photo-corrosion is still an obstacle in its application. It is a big challenge to improve stability using synthesis modification. Here, the photocatalyst stability enhancement was successfully prepared by tripolyphosphate. Photocatalyst was prepared by reacting AgNO₃ solution with STPP (sodium tripolyphosphate) solution to form a white suspension. The addition of phosphate solution to the white suspension produces yellow Ag₃PO₄ with a new type of defective photocatalyst. The XPS measurement showed that the increase of STPP concentration significantly decreased the Ag/P atomic ratio, indicating the silver vacancy formation on the surface of Ag₃PO₄. The photocatalytic reaction formed a metallic Ag with a lower d-space in the cube structure occurred in the silver vacancy of Ag₃PO₄. This defect increases the interaction of metallic silver and Ag₃PO₄. The enhanced photo-stability might be induced by metallic silver that can act as a photogenerated electron acceptor.     

Ag/Ag3PO4/g-C3N4三元复合光催化剂的制备及其可见光驱动下的光催化活性增强

报道了一种新型Ag/Ag₃PO₄/g-C₃N₄三元复合光催化剂的制备及其半导体界面处的快速载流子分离所引起的光催化活性的显著增强效应。通过X射线衍射,扫描电子显微镜,紫外-可见吸收光谱以及光致发光光谱等就其晶体结构、形貌、组分、光学吸收以及载流子的快速分离行为进行了表征与分析。以罗丹明B作为模型化合物分子,研究发现,所制备的Ag/Ag₃PO₄/g-C₃N₄三元复合光催化剂在可见光照射下表现出比Ag₃PO₄以及Ag₃PO₄/g-C₃N₄二元催化剂更为优异的光催化活性。研究认为,Ag₃PO₄表面尺寸约为40 nm的Ag纳米粒子在可见光下受激所产生的等离子表面共振效应以及Ag₃PO₄与g-C₃N₄界面处所形成的类似异质结结构对所制备的Ag/Ag₃PO₄/g-C₃N₄三元复合光催化剂光催化活性的显著增强起到重要作用。     

p-n异质结BiPO_4/Ag_3PO_4的制备及其增强的模拟太阳光活性

采用一步水热合成法制备了BiPO_4、Ag_3PO_4和BiPO_4/Ag_3PO_4复合光催化剂,通过X射线粉末衍射(XRD)、X射线光电子能谱(XPS)、扫描电子显微镜(SEM)、紫外-可见漫反射(UV-Vis DRS)等表征手段对其组成结构、形貌及光吸收性质进行了表征,结果表明Ag_3PO_4呈块状结构,BiPO_4则分布在其表面,形成的BiPO_4/Ag_3PO_4复合光催化剂具有单斜相和立方晶相结构,带边吸收拓宽至571 nm。以甲基橙和加替沙星为目标污染物,考察了BiPO_4/Ag_3PO_4复合光催化剂在模拟太阳光照射下的降解矿化能力,结果表明复合催化剂比单一催化剂的降解矿化能力更强,稳定性更好。此外,自由基捕获实验表明空穴是该光催化过程中的主要活性物种,·O2-次之。p-n异质结的形成使BiPO_4/Ag_3PO_4复合光催化剂具有较强的电子空穴分离能力是光催化活性提高的主要原因,这与光电流和电化学阻抗谱测试结果相一致。基于以上结果,文中对BiPO_4/Ag_3PO_4光催化降解有机污染物的机理进行了推测。     

Preparation of high‐activity AgBr/Ag3PO4 photocatalyst based on hexadecyltrimethylammonium bromide and mechanism of photocatalytic enhancement

A high‐activity AgBr/Ag₃PO₄ heterojunction photocatalyst was synthesized based on hexadecyltrimethylammonium bromide. Its microspheres were characterized using X‐ray diffractometry, transmission electron microscopy and ultraviolet–visible diffuse reflectance spectroscopy. The new photocatalyst with high photocatalytic activity exceptionally outperforms pure Ag₃PO₄ and AgBr in methyl orange degradation. The enhancement of photocatalytic activity is attributed to the efficient separation of electron–hole pairs. In this photocatalytic reaction, h⁺ and ^?O^2? are the main reactive species that induce visible‐light‐driven degradation.     

Facile Synthesis of Ag/Ag3PO4 Composites with Highly Efficient and Stable Photocatalytic Performance under Visible Light

The Ag/Ag₃PO₄ composites with various shapes (spheres, polyhedral, and microcubes) were synthesized by a facile precipitation method and a subsequent light‐reduction route at room temperature. The as‐prepared Ag/Ag₃PO₄ composites were characterized in detail by X‐ray diffraction, Fourier transform infrared spectra, X‐ray photoelectron spectroscopy, scanning electron microscopy, UV–vis diffuse reflection, and photoluminescence spectroscopy. The growth processes of different morphologies Ag/Ag₃PO₄ composites are also discussed. The decomposition test of rhodamine B (RhB) indicated that the Ag/Ag₃PO₄ composites enhanced the photocatalytic performance compared with pure Ag₃PO₄, which was attributed to the surface plasmon resonance (SPR) of Ag nanoparticles and the stability of the photocatalysts. Moreover, uniform cubes of Ag/Ag₃PO₄ showed the highest photocatalytic activity and could completely degrade RhB in 7 min, which could be primarily ascribed to the cubic structure of Ag/Ag₃PO₄ with strong visible‐light absorption and efficient separation of the photo‐generated electrons and holes. Furthermore, the possible photocatalytic mechanism is also discussed.     

Visible‐Light Photocatalytic Activity and Deactivation Mechanism of Ag3PO4 Spherical Particles

Ag₃PO₄ spherical particles were synthesized by a facile precipitation method using silver nitrate and Na₂HPO₄ as precursors. The as‐prepared samples had a high photocatalytic activity toward Rhodamine B (RhB) degradation under visible‐light illumination. With increasing recycling times the photocatalytic activity first increased and then decreased. Based on systematic characterization of particles by X‐ray diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), UV/Vis absorption spectroscopy, scanning electron microscopy (SEM), and transmission electron microscopy (TEM), a possible mechanism responsible for the improvement and subsequent decline of the photocatalytic performance of Ag₃PO₄ is proposed. Ag₃PO₄ spherical particles recycled for four times showed the highest photocatalytic activity because, according to our mechanism, Ag nanoparticles deposited on Ag₃PO₄ acted as electron trapping centers to prevent photogenerated electron‐hole pairs from recombination. A further increase in the recycle times decreases the photocatalytic activity owing to the shielding effect by Ag layers on the surface of Ag₃PO₄. The results presented herein shed new light on the photostability of Ag₃PO₄ spherical particles and are potentially applicable to other photocatalytically active composites.     

Ag_3PO_4/MoS_2纳米片复合催化剂制备及可见光催化性能

采用机械球磨法成功制备Ag_3PO_4/MoS_2纳米片复合催化剂。运用X射线衍射仪(XRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、紫外可见漫反射光谱(UV-Vis)和荧光发射光谱(PL)对复合催化剂的结构和形貌进行了表征。结果表明,Ag_3PO_4纳米粒子均匀地附着在MoS_2纳米片层结构上,两者形成紧密结合。以亚甲基蓝为模拟污染物,研究复合催化剂在可见光照射下的光催化特性;通过循环实验考察复合催化剂的稳定性。结果显示,含有1%的MoS_2纳米片与Ag_3PO_4形成的复合催化剂在30 min内对亚甲基蓝的降解率为95%,其降解动力学常数是纯相Ag_3PO_4的2倍。经过5次循环实验后复合催化剂对于亚甲基蓝的降解率为84%,而纯Ag_3PO_4对于亚甲基蓝的降解率仅为35%。Ag_3PO_4/MoS_2纳米片复合催化剂具有优良的光催化活性和高稳定性,主要归因于二硫化钼纳米片与磷酸银形成异质结,磷酸银激发的电子和二硫化钼纳米片产生的空穴直接复合,从而促使光生电子从磷酸银晶体表面快速分离,减轻了磷酸银的光电子腐蚀,同时也提高了复合物的光催化活性。     

Ag3PO4/MoS2纳米片复合催化剂制备及可见光催化性能

采用机械球磨法成功制备Ag₃PO₄/MoS₂纳米片复合催化剂。运用X射线衍射仪（XRD）、透射电子显微镜（TEM）、扫描电子显微镜（SEM）、紫外可见漫反射光谱（UV-Vis）和荧光发射光谱（PL）对复合催化剂的结构和形貌进行了表征。结果表明,Ag₃PO₄纳米粒子均匀地附着在MoS₂纳米片层结构上,两者形成紧密结合。以亚甲基蓝为模拟污染物,研究复合催化剂在可见光照射下的光催化特性;通过循环实验考察复合催化剂的稳定性。结果显示,含有1%的MoS₂纳米片与Ag₃PO₄形成的复合催化剂在30 min内对亚甲基蓝的降解率为95%,其降解动力学常数是纯相Ag₃PO₄的2倍。经过5次循环实验后复合催化剂对于亚甲基蓝的降解率为84%,而纯Ag₃PO₄对于亚甲基蓝的降解率仅为35%。Ag₃PO₄/MoS₂纳米片复合催化剂具有优良的光催化活性和高稳定性,主要归因于二硫化钼纳米片与磷酸银形成异质结,磷酸银激发的电子和二硫化钼纳米片产生的空穴直接复合,从而促使光生电子从磷酸银晶体表面快速分离,减轻了磷酸银的光电子腐蚀,同时也提高了复合物的光催化活性。     

Reduced Graphene Oxide–Ag3PO4 Heterostructure: A Direct Z‐Scheme Photocatalyst for Augmented Photoreactivity and Stability

A visible light driven, direct Z‐scheme reduced graphene oxide–Ag₃PO₄ (RGO–Ag₃PO₄) heterostructure was synthesized by means of a simple one‐pot photoreduction route by varying the amount of RGO under visible light illumination. The reduction of graphene oxide (GO) and growth of Ag₃PO₄ took place simultaneously. The effect of the amount of RGO on the textural properties and photocatalytic activity of the heterostructure was investigated under visible light illumination. Furthermore, total organic carbon (TOC) analysis confirmed 97.1 % mineralization of organic dyes over RGO–Ag₃PO₄ in just five minutes under visible‐light illumination. The use of different quenchers in the photomineralization suggested the presence of hydroxyl radicals ( ^. OH), superoxide radicals ( ^. O₂^?), and holes (h⁺), which play a significant role in the mineralization of organic dyes. In addition to that, clean hydrogen fuel generation was also observed with excellent reusability. The 4 RGO–Ag₃PO₄ heterostructure has a high H₂ evolution rate of 3690 μmol h^?1 g^?1, which is 6.15 times higher than that of RGO.     

Ternary Ag/Ag3PO4/MIL-125-NH2 Z-scheme heterojunction for boosted photocatalytic Cr(VI) cleanup under visible light

The binary Ag₃PO₄/MIL-125-NH₂ (AMN-X) composites were synthesized through ion exchange-solution method, and the ternary Ag/Ag₃PO₄/MIL-125-NH₂ (AAMN-X) Z-scheme heterojunctions were prepared via the photo chemical reduction deposition strategy. The photocatalytic hexavalent chromium (Cr(VI)) sequestration over AMN-X and AAMN-X were investigated under visible light. AAMN-120 accomplished superior reduction performance due to that Ag nanoparticles (NPs) act as electrons transfer bridge to enhance the separation efficiency of photogenerated e⁻-h⁺ pairs, in which the reaction rates (k value) were 2.77 and 124.2 fold higher than those of individual MIL-125-NH₂ and Ag₃PO₄, respectively. The influences of different pH values, small organic acids and coexisting ions on the photocatalytic performance of AAMN-120 were also investigated. In addition, the AAMN-120 heterojunction expressed great reusability and stability in cycling experiments. The mechanism of photocatalytic Cr(VI) was investigated and verified through photoluminescence (PL), electrochemistry, electron spin resonance (ESR), active species capture, and Pt element deposition experiments.     

Ag3PO4/BiVO4复合光催化剂的制备及可见光催化降解染料

结合回流法和原位沉淀法成功制备磷酸银/矾酸铋(Ag₃PO₄/BiVO₄)复合光催化剂. 通过X 射线衍射(XRD)、场发射扫描电子显微镜(FESEM)、能量色散X射线光谱(EDS)、紫外-可见漫反射光谱(UV-Vis DRS)及光致发光(PL)光谱对制备样品进行表征. XRD和FESEM结果表明成功制备Ag₃PO₄/BiVO₄复合光催化剂. 采用节能发光二极管灯(LED)作为可见光光源, 在低消耗光催化系统中评价制备样品可见光催化降解染料的活性.当Ag₃PO₄和BiVO₄的组成摩尔比为1:3 时, 复合Ag₃PO₄/BiVO₄光催化剂呈现出高于纯相Ag₃PO₄的催化活性,可减少Ag₃PO₄的使用量. Ag₃PO₄/BiVO₄复合光催化剂在中性溶液中表现出高活性, 同时证实其对阳离子染料的光催化降解效果强于阴离子染料. 在Ag₃PO₄/BiVO₄系统中, 超氧自由基和空穴是主要的活性物种. 经过三次循环利用, Ag₃PO₄/BiVO₄复合催化剂的可见光催化活性表现出不同程度的降低, 归因于降解过程中产生金属银.     

A novel Ag/Ag3PO4-IRMOF-1 nanocomposite for antibacterial application in the dark and under visible light irradiation

MOF-5 that sometimes called IRMOF-1 has been intensively studied in recent years to develop efficient photocatalyst to degrade refractory organics and inactivate bacteria for wastewater treatment. In the present work, Ag/Ag₃PO₄ nanoparticles incorporated in IRMOF-1 was successfully prepared via hydrothermal approach. The antibacterial activity of synthesized materials (IRMOF-1, Ag/Ag₃PO₄ nanoparticles and Ag/Ag₃PO₄-IRMOF-1 nanocomposite was compared against two types of bacteria (Escherichia coli (E. coil) as Gram negative and Staphylococcus aureus (S. aureus) as Gram-positive bacteria). The deactivation of the bacteria by the prepared material was measured in the dark and under visible light irradiation. The antibacterial activity of synthesized samples was investigated by determining the minimal inhibitory concentration (MIC), minimal bactericidal concentration (MBC), growth inhibition assay and inhibition zone. The Ag/Ag₃PO₄-IRMOF-1 nanocomposite exhibited stronger antibacterial activities than the Ag/Ag₃PO₄ nanoparticles and IRMOF-1 at all tested bacteria types. Based on inhibition zone, without any light irradiation, Ag/Ag₃PO₄-IRMOF-1 nanocomposite showed activity toward E. coil, but in presence of light nanocomposite depicted activity toward S. aureus. The results demonstrated that antibacterial activity of all synthesized samples in the dark and light against S. aureus bacteria was more than E. coil bacteria. The antibacterial activity mechanism was due to sustained-release of silver ions in the dark and reactive oxygen species (ROS) under visible light. The bioactivity of IRMOF-1 was related to the degradation of the its structure and the release of Zn²⁺ ions into the culture medium that bind to the cell wall and deactivation bacteria.     

A Novel Ag3PO4/Ag/Ag2Mo2O7 Nanowire Photocatalyst: Ternary Nanocomposite for Enhanced Photocatalytic Activity

Ag₃PO₄/Ag/Ag₂Mo₂O₇ composite photocatalyst was successfully prepared via an in situ precipitation method. The as-prepared Ag₃PO₄/Ag/Ag₂Mo₂O₇ nanocomposite included Ag₃PO₄ nanoparticles (NPs) as well as Ag NPs assembling on the surface of Ag₂Mo₂O₇ nanowires. Under visible light irradiation (λ > 420 nm), the Ag₃PO₄/Ag/Ag₂Mo₂O₇ composite degraded rhodamine B (Rh B) efficiently and showed much higher photocatalytic efficiency than pure Ag₃PO₄, Ag₂Mo₂O₇, or Ag₃PO₄/Ag₂Mo₂O₇. It was elucidated that the excellent photocatalytic performance of Ag₃PO₄/Ag/Ag₂Mo₂O₇ for the degradation of Rh B under visible light could be ascribed to the high specific surface area, the extended absorption in the visible light region resulting from the Ag₃PO₄/Ag loading, and the efficient separation of photogenerated electrons and holes through the ternary heterostrucure composed of Ag₃PO₄, Ag and Ag₂Mo₂O₇.     

Efficient solar photocatalyst based on Ag<Subscript>3</Subscript>PO<Subscript>4</Subscript>/graphene nanosheets composite for photocatalytic decolorization of dye pollutants

Silver orthophosphate-graphene nanosheets composite (Ag₃PO₄-GNs) has been fabricated using a facile hydrothermal method. The Ag₃PO₄-GNs were characterized using XRD, UV–vis DRS and SEM. The photocatalytic activity of Ag₃PO₄-GNs was evaluated by photocatalytic decolorization of dye aqueous solutions under simulated solar light irradiation. It was observed that Ag₃PO₄ nanoparticles in Ag₃PO₄-GNs were attached on the surface of graphene nanosheets.The introduction of graphene nanosheets enhanced remarkably the visible light absorption region of Ag₃PO₄-GNs compared with bare Ag₃PO₄. The photocatalytic activity of Ag₃PO₄-GNs is nearly twice as high as that of the pure Ag₃PO₄. The removal efficiency can reach more than 90 % by Ag₃PO₄-GNs under simulated solar light irradiation within 25 min, which might mainly be attributed to high adsorption capacity, extended light absorption range and efficient charge separation. After irradiation for 60 min, 84.70 % TOC mineralization was achieved by Ag₃PO₄-GNs. Based on the results of detection of active species, the direct oxidization of dye pollutants in aqueous solution by holes takes a major role in the whole decolorization process by Ag₃PO₄-GNs. As a result, Ag₃PO₄-GNs with the high photocatalytic activity are proven to be an excellent light photocatalyst for potentially scalable removal of dyes in aqueous solutions and other environmental remediation under simulated solar light irradiation.     

Enhanced photocatalytic activity of Ag3PO4 via Fullerene C60 modification

Fullerene‐C₆₀‐modified Ag₃PO₄ photocatalysts (C₆₀/Ag₃PO₄) were prepared via facile chemical precipitation. The structures, morphology and photocatalytic properties of C₆₀/Ag₃PO₄ were characterized by X‐ray diffractometry (XRD), transmission electron microscopy (TEM), photoluminescence (PL) spectrometry, and ultraviolet–visible (UV–vis) absorption spectrometry. C₆₀/Ag₃PO₄ exhibits considerably higher photocatalytic activity for degradation of Methyl Orange. The degradation conversion reached 93% after 8 min of light irradiation. Besides, the enhancement of photocatalytic activity could be attributed to the active species ?OH_, which can be ascribed to strong synergistic effect between Fullerene C₆₀ and Ag₃PO₄.     

Hydrothermal Synthesis and Characterization of Visible-Light-Driven Dumbbell-Like BiVO4 and Ag/BiVO4 Photocatalysts

Visible-light-driven dumbbell-like BiVO₄ and Ag/BiVO₄ photocatalysts has been successfully synthesized by a simple hydrothermal method at 180 °C for 24 h. The as-synthesized photocatalysts were characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and UV–Vis absorption spectroscopy. The results obtained showed that ethylenediamine, citric acid, pH and hydrothermal reaction temperature have pronounced effects on the morphology of BiVO₄. Transmission electron microscopy observation shows that the Ag nanoparticles are homogenously dispersed on the surface of the BiVO₄ nanorods. Photocatalytic activities of the dumbbell-like BiVO₄ and Ag-loaded BiVO₄ photocatalysts were also evaluated by using methylene blue as a representative dye indicator under visible light irradiation. It is found that the photocatalytic performance of the as-synthesized BiVO₄ is obviously improved with the incorporation of the Ag nanoparticles. Mechanism for the enhancement of the photocatalytic activity of the Ag/BiVO₄ photocatalyst is also discussed.     

Facile preparation of Ag/Ag2WO4/g‐C3N4 ternary plasmonic photocatalyst and its visible‐light photocatalytic activity

Introducing plasmonic metals into semiconductor materials has been proven to be an attractive strategy for enhancing photocatalytic activity in the visible region. In this work, a novel and efficient Ag/Ag₂WO₄/g‐C₃N₄ (AACN) ternary plasmonic photocatalyst was successfully synthesized using a facile one‐step in situ hydrothermal method. The composition, structure, morphology and optical absorption properties of AACN were investigated using X‐ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and UV–visible diffuse reflectance spectroscopy, respectively. Photocatalytic performance of AACN was evaluated via rhodamine B and tetracycline degradation. The results indicated that AACN had excellent photocatalytic performance for rhodamine B degradation with a rate constant of 0.0125 min^?1, which was higher than those of Ag₂WO₄ and Ag/Ag₂WO₄. Characterization and photocatalytic tests showed that the strong coupling effect between the Ag/Ag₂WO₄ nanoparticles and the exfoliated ultrathin g‐C₃N₄ nanosheets was superior for visible‐light responsivity and reduced the recombination rate of photogenerated electrons and holes. A proposed mechanism is also discussed according to the band energy structure and the experimental results.     

Ag/Ag2MoO4/Bi2MoO6复合光催化剂的制备及其光催化性能

采用水热、化学沉积和原位光还原的方法成功制备了新型Ag/Ag₂MoO₄/Bi₂MoO₆三元复合光催化剂。通过X射线粉末衍射（XRD）、扫描电子显微镜（SEM）、X射线光电子能谱（XPS）和紫外可见漫反射光谱（UV-Vis DRS）等技术对材料的组成、形貌、光吸收特性和光电化学性能等进行系统分析。以四环素为目标污染物,研究Ag/Ag₂MoO₄/Bi₂MoO₆在可见光下的光催化性能。研究结果表明,相比于纯Ag₂MoO₄和Bi₂MoO₆,Ag的表面等离子体共振（SPR）效应显著拓宽了催化体系对可见光的吸收能力及响应范围。当Ag₂MoO₄理论负载量（质量分数）为24.6%时,Ag/Ag₂MoO₄/Bi₂MoO₆复合材料在20 min内可将四环素完全降解,且5次循环使用后仍保持较高的催化活性,表现出良好的循环稳定性。     

Enhancement of SrTiO<Subscript>3</Subscript>/BiPO<Subscript>4</Subscript> heterostructure for simulated organic wastewater degradation under UV light irradiation

A novel SrTiO₃/BiPO₄ heterostructure with different amounts of SrTiO₃ have been successfully prepared through the hydrothermal process. The photocatalysts were characterized by X-ray powder diffraction, UV–Vis diffuse reflectance spectroscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy, transmission electron microscopy, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy. The photocatalytic performance was evaluated by degrading the methylene blue dye solution under UV light. Results showed that the samples displayed excellent photocatalytic degradation efficiency due to the highly efficient suppression of the recombination of electron–hole pairs. A possible mechanism of SrTiO₃/BiPO₄ heterojunctions was discussed. The research indicated that the as-prepared SrTiO₃/BiPO₄ heterogeneous photocatalyst can be used as an effective material for degrading industrial organic wastewater.