Plasmonic photocatalysis
Plasmonic photocatalysis
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DOI：
10.1142/9781786341259_0010
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
S. Ramakrishnan;Ravi Teja A. Tirumala;Farshid Mohammadparast;Tong Mou;Tien Le;Bin Wang;M. Andiappan
中科院分区：
文献类型：
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作者：
S. Ramakrishnan;Ravi Teja A. Tirumala;Farshid Mohammadparast;Tong Mou;Tien Le;Bin Wang;M. Andiappan
等离子体光催化剂，即利用等离子体特性在可见光（维斯）照射下获得活性的光催化剂，近年来已被广泛研究用于各种可能的应用，包括环境净化和能量转换。最典型的等离子体光催化剂由宽带隙半导体（例如，氧化钛（IV））和贵金属（NM）的沉积物组成。虽然NM改性的二氧化钛光催化剂已经被广泛研究了40多年，因为NM作为抑制电荷载流子复合的电子阱[1-4]，但将等离子体性质用于光催化剂可以被认为是新的。据认为，第一份证明金的等离子体共振是维斯响应的报告由Tian和Tatsuma于2005年发表[5]。从那时起，发表了越来越多的研究[6-10]，并提出了“等离子体激元”和“等离子体光催化剂”的新术语[11]。从每年发表的大量科学论文（图1）中可以看出，等离子体激元共振似乎仍然是vis-responsive材料研究的“热门”话题，其中包括高引用和“热门”论文（根据Web of Science：2021年3月18日，分别为46和3）。应该指出的是，许多报告甚至没有被包括在图1中，因为其他术语已经被普遍使用，例如，“可见光诱导的通过NM的表面等离子体激元激发的散射."，“具有维斯活性的金改性二氧化钛”、“银改性二氧化钛的维斯响应”等，不仅发表了等离子体激元激发的研究论文，还发表了评论和书籍章节。虽然，等离子体激元光催化剂已被证明在宽范围的照射下是活性的（UV/维斯/IR）和用于各种应用，包括废水和水处理[12，13]、空气净化[14，15]、抗微生物材料[16-20]、太阳能转化[21，22]、有机化合物的合成[23]和CO2转化[24]，在太阳辐射下的放射性（维斯/近红外）对于更广泛的商业化来说仍然很低。因此，已经对等离子体光催化剂的活性和稳定性改进进行了各种研究，如在Special Issue of Catalysts on“Plasmonic Photocatalysts”中提出的。
Plasmonic photocatalysts, ie, photocatalysts using plasmonic properties to gain activity under visible-light (vis) irradiation, have been intensively studied in recent years for various possible applications, including environmental purification and energy conversion. Most typical plasmonic photocatalysts are composed of wide-bandgap semiconductor, eg, titanium (IV) oxide, and deposits of noble metals (NM). Although, NM-modified titania photocatalysts have already been extensively investigated for more than 40 years as NMs work as an electron sink inhibiting charge carriers’ recombination [1–4], the use of plasmonic properties for photocatalysis could be considered as new. It is thought that the first report, proving that plasmon resonance of gold was responsible for vis response, was published by Tian and Tatsuma in 2005 [5]. Since then more and more studies have been published [6–10], and the new term of “plasmonic photocatalysis” and “plasmonic photocatalysts” have been proposed [11]. It seems that the plasmonic photocatalysis is still a “hot” topic of research on the vis-responsive materials, as observed by a high number of scientific papers published yearly (Figure 1), including highly cited and “hot” papers (46 and 3, respectively, according to Web of Science: 18 March 2021). It should be pointed out that many reports have not been even included in Figure 1, as other terms have been commonly used, eg,“visible-light-induced photocatalysis through surface plasmon excitation of NM...”,“gold-modified titania with vis activity”,“vis response of silver-modified titanium (IV) oxide”, etc. Not only research papers on plasmonic photocatalysis have been published, but also reviews and book chapters. Although, plasmonic photocatalysts have proven to be active under broad range of irradiation (UV/vis/IR) and for various applications, including wastewater and water treatment [12, 13], air purification [14, 15], antimicrobial materials [16–20], solar energy conversion [21, 22], synthesis of organic compounds [23], and CO2 conversion [24], the activity under solar radiation (vis/NIR) is still low for broader commercialization. Therefore, various studies have been performed on activity and stability improvements of plasmonic photocatalysts, as presented in the Special Issue of Catalysts on “Plasmonic Photocatalysts”.