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| 沉淀煅烧法合成(CuAg)0.15In0.3Zn1.4S2光催化剂及可见光下的制氢性能 | |
| 引用本文： | 张广山,张文,John C.Crittenden,陈勇生,Daisuke Minakata,王鹏. 沉淀煅烧法合成(CuAg)0.15In0.3Zn1.4S2光催化剂及可见光下的制氢性能[J]. 催化学报, 2013, 34(10): 1926-1935. DOI: 10.1016/S1872-2067(12)60675-5 |
| 作者姓名： | 张广山 张文 John C.Crittenden 陈勇生 Daisuke Minakata 王鹏 |
| 作者单位： | a 哈尔滨工业大学市政环境工程学院, 城市水资源与水环境国家重点实验室, 黑龙江哈尔滨150090; b 佐治亚理工学院土木与环境工程学院, 美国亚特兰大30332; c 新泽西理工学院土木与环境工程系, 美国纽瓦克07102; d 佐治亚理工学院布鲁克贝尔可持续性发展学院, 美国亚特兰大30332; e 密歇根理工大学土木与环境工程系, 美国霍顿49931 |
| 基金项目： | 美国佐治亚理工学院布鲁克贝尔可持续性发展学院,Hightower Chair和Georgia Research Alliance;国家自然科学基金委员会创新研究群体科学基金(51121062)~~ |
| 摘 要： | 研究了沉淀煅烧法制备的纳米级(CuAg)0.15In0.3Zn1.4S2光催化剂以及产氢效率,并采用X射线衍射、透射电镜、扫描电镜、N2吸附-脱附、紫外-可见吸收光谱等手段对催化剂进行了表征. 结果表明,(CuAg)0.15In0.3Zn1.4S2的结晶度、比表面积和吸收可见光能力与煅烧温度和煅烧时间有关. 在可见光下,以KI为电子给体,考察了不同条件对光催化产氢能力的影响. 发现在600℃煅烧5h时所制的(CuAg)0.15In0.3Zn1.4S2光催化剂产氢活性最高,产氢速率为1750 μmol g-1 h-1,量子效率在420±5nm达到12.8%,比未煅烧催化剂的光催化活性提高了约6倍. |
| 关 键 词： | 光催化剂 多金属复合硫化物 制氢 煅烧 光催化活性 可见光 |
| 收稿时间： | 2013-05-29 |
Photocatalytic hydrogen production under visible-light irradiation on (CuAg)0.15In0.3Zn1.4S2 synthesized by precipitation and calcination |
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| Guangshan Zhang;Wen Zhang;John C.Crittenden;Yongsheng Chen;Daisuke Minakata;Peng Wang. Photocatalytic hydrogen production under visible-light irradiation on (CuAg)0.15In0.3Zn1.4S2 synthesized by precipitation and calcination[J]. Chinese Journal of Catalysis, 2013, 34(10): 1926-1935. DOI: 10.1016/S1872-2067(12)60675-5 | |
| Authors: | Guangshan Zhang Wen Zhang John C.Crittenden Yongsheng Chen Daisuke Minakata Peng Wang |
| Affiliation: | Guangshan Zhang;Wen Zhang;John C.Crittenden;Yongsheng Chen;Daisuke Minakata;Peng Wang;State Key Laboratory of Urban Water Resource and Environment,School of Municipal and Environmental Engineering,Harbin Institute of Technology;School of Civil and Environmental Engineering,Georgia Institute of Technology;Department of Civil and Environmental Engineering,New Jersey Institute of Technology;Brook Byers Institute for Sustainable Systems,Georgia Institute of Technology; |
| Abstract: | This study investigates the photocatalytic hydrogen production over nanosized (CuAg)0.15In0.3Zn1.4S2 photocatalysts prepared via precipitation and calcination. The photocatalysts were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, N2 adsorption-desorption, and UV-Vis absorption spectroscopy. The results show that calcination temperature and time significantly influence the crystallinity, specific surface area, and visible-light absorption capacity of the photocatalysts. The photocatalyst activity was studied under visible-light irradiation with KI as the electron donor. The results indicate that the (CuAg)0.15In0.3Zn1.4S2 photocatalyst prepared at a calcination temperature of 600 ℃ for 5 h yields the highest photocatalytic activity (H2 production rate of 1750 μmol g-1 h-1 and quantum yield of 12.8% at 420±5 nm), approximately 6 times larger than that of catalysts prepared without thermal treatment. |
| Keywords: | Photocatalyst Multicomponent metal sufide Hydrogen production Calcination Photocatalytic activity Visible light |
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