(1. 燕山大學(xué) 亞穩(wěn)材料制備技術(shù)與科學(xué)國家重點實驗室,秦皇島 066004;
2. 燕山大學(xué) 環(huán)境與化學(xué)工程學(xué)院 河北省應(yīng)用化學(xué)重點實驗室,秦皇島 066004)
摘 要: 光催化技術(shù)是解決當(dāng)今社會能源短缺、水體污染等問題的有效手段。綜述了近幾年鈣鈦礦(ABO3)/石墨相氮化碳(g-C3N4)復(fù)合光催化劑的最新研究進(jìn)展。歸納總結(jié)了包括原位水熱生長法及熱溶劑法、簡單煅燒法、物理混合法等幾種該類復(fù)合材料的制備方法,分類闡述當(dāng)B位是Ti或Ta以及A位為La時,其在光催化分解水制氫以及有機(jī)污染物降解方面的研究現(xiàn)狀,解析此類復(fù)合材料具有良好光催化性能的原因,以及在不同類型異質(zhì)結(jié)下的光催化作用機(jī)理。提出目前關(guān)于ABO3/g-C3N4復(fù)合光催化劑的研究中存在的問題和當(dāng)前該領(lǐng)域的發(fā)展趨勢。
關(guān)鍵字: 石墨相氮化碳;鈣鈦礦型氧化物;復(fù)合材料;光催化
(1. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;
2. Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, China)
Abstract:The development of industry and technology has caused energetic and environmental problems, such as energy shortages and water pollution in today’s society. The photocatalytic technology is an effective means to solve these problems, and photocatalyst is one of the main factors affecting photocatalytic technology. The graphite phase carbon nitride(g-C3N4) plays an important role in the field of photocatalysis because of its wide source of raw materials, non-toxicity, stable chemical properties, and relatively narrow band gap (2.7 eV) for visible light response. Perovskite type oxide(ABO3) has a unique stable structure and excellent electronic configuration. The existence of non-stoichiometric oxygen vacancies will provide more reaction sites for photocatalytic reactions. The recent advances of ABO3/g-C3N4 composite in photocatalytic hydrogen evolution and organic pollutant degradation were reviewed. The reason for the composite with good photocatalytic performance was analyzed. Finally, the challenges remaining to be solved were summarized, and the prospects of ABO3/g-C3N4 for further advances in photocatalysis were also presented.
Key words: graphite phase carbon nitride; perovskite type oxide; composites; photocatalysis


