无机材料学报Issue(7)：683-693,11.DOI:10.15541/jim20140648
基于能带结构理论的半导体光催化材料改性策略
Modification Strategies for Semiconductor Photocatalyst Based on Energy Band Structure Theory
摘要
Abstract
Design and controllable synthesis of catalyst and its property tuning are an interesting subject for physical chemistry, materials chemistry and catalytic chemistry. As a new environmental-purifying technology, semiconductor photocatalytic oxidation technology has arosen worldwide attention. However, conventional photocatalyst exhibits poor utilization of solar energy and low efficient of photogenerated charge separation, which restricts the practical application of the technology. Therefore, it is still a challenging topic to design and synthesize visible-light-response photocatalytic materials with higher utilization efficiency of solar energy. Be-sides tuning synthesis method (by controlling particle size, morphology, crystallinity and other microstructures, etc), modification is a crucial strategy for the activity enhancement of photocatalyst. In this paper, we reviewed the basic mechanism for the photocatalyst modification from the view of semiconductor energy structure. Taking consideration of the basic mechanism and process of photocatalysis, there are two key modification strategies: chemical structure modification (energy band modification) to broaden the light absorption and surface modifi-cation (surface sensitization, semiconductor combinations and noble metal deposition) to increase life-time of carrier. Suitable band structure is responsible for the visible-light harvesting and effective separation of carrier of semiconductor photocatalyst.关键词
催化剂/光催化/能带结构/改性/策略/综述Key words
catalyst/photocatalysis/energy band structure/modification/strategies/review分类
化学化工引用本文复制引用
王丹军,张洁,郭莉,申会东,付峰,薛岗林,方轶凡..基于能带结构理论的半导体光催化材料改性策略[J].无机材料学报,2015,(7):683-693,11.基金项目
国家自然科学基金重点项目(20973133) （20973133）
教育部合成与天然产物重点实验室基金(338080055) （338080055）
陕西省科技厅工业攻关项目(2013K11-08,2013SZS20-P01) （2013K11-08,2013SZS20-P01）
陕西省教育厅基金(13JK0669) （13JK0669）
延安市工业攻关项目(2011kg-13) （2011kg-13）
大学生创新项目(1242) National Natural Science Foundation of China(20973133) （1242）
Open Foundation of Key Laboratory of Synthetic and Natural Functional Molecule Chemistry(Ministry of Educational)(338080055) （Ministry of Educational）
Natural Science Program of Education Department of Shaanxi Province (2013K11-08,2013SZS20-P01) （2013K11-08,2013SZS20-P01）
Shaanxi Provincial Education Department Fund(13JK0669) （13JK0669）
Key Industry Plan of Yan’an City (2011kg-13) （2011kg-13）
College students’ Innolvative Projects(1242) （1242）
