钛基光催化材料光催化还原二氧化碳的研究进展
首发时间:2012-12-21
摘要:钛基光催化材料因具有价格低廉、无毒、稳定性好、独特的光诱导电子转移等特点,被广泛应用作催化材料。以钛基材料为催化剂,光催化还原二氧化碳转化为甲烷、甲醇、乙醇等有机染料,以较低的代价将太阳能转变成化学能,得到可再生、无污染的有机燃料,最终形成可再生能源作用下碳资源的大循环,可同时解决能源与环境污染的危机,具有重要意义。本文以二氧化钛、钛基材料等为催化剂,对其光催化还原二氧化碳生成有机燃料的研究进行了归纳总结,综述了现存的问题,并对其发展作了展望。
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Recent progress of Ti-based photocatalyst materials in photocatalytic reduction of carbon dioxide
Abstract:Ti-based photocatalyst materials have been widely used in the photocatalytic reduction of carbon dioxide because of its characteristics of chemical stability, nontoxic, low cost and unique photoinduced electron transfer. Using Ti-based materials as photochemical catalysts and solar light as energy, phorocatalytic reduction of carbon dioxide to organic fuels can be achieved via reductive hydrogenative conversion. And the potentially clean and renewable sources for carbon fuels can be obtained, such as methane, methanol, ethanol and other hydrocarbon. Chemical recycling of carbon dioxide from natural or industrial sources to organic fuels not only relieves the pressure of the energy crisis but also phases down the environmental pollution. Therefore, the conversion of carbon dioxide into valuable, renewable and inexhaustible carbon source of the future substances is essential and significative. In this review, an overview of the growth taken place so far in the field of photocatalytic reduction of carbon dioxide to organic fuels is presented. Mainly based on the catalysts of titanium dioxide and Ti-based photocatalyst materials, the reaction of photocatalytic reduction of carbon dioxide are briefly introduced. Finally, the existing problems of photocatalysis technology and the catalysts about photocatalytic reduction of carbon dioxide are summarized, and the future developing prospects are also addressed.
Keywords: Titanium dioxide Ti-based photocatalyst materials Carbon dioxide Photocatalytic
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