摘要
类芬顿反应,因其能够克服传统芬顿反应工作pH范围较窄,易产生大量铁泥的局限而受到了大量关注。尽管炭材料在无驱动力时,同过氧化氢的反应活性不佳,多孔炭材料在类芬顿反应中依然得到了广泛应用。在各种研究中,这些多孔炭材料扮演了多种不同角色,诸如吸附剂、金属材料载体、以及过氧化氢选择性电合成的催化剂。本综述中,讨论了近年里多孔材料在上述情况的研究进展。由于成熟的合成工艺,很高的化学及热稳定性以及多样的功能,多孔炭材料已成为一种应用广泛的材料。在类芬顿过程中,更是有助于电子与物质的转移,防止金属泄露,并较大地提升了反应效率。
Electro-Fenton,photo-Fenton and Fenton-like reactions are important advanced oxidation processes for waste water treatment,which overcome the limitations of a narrow pH range and excessive iron sludge production in the classic Fenton reaction and have received great attention in the last few decades.The porous carbons in these Fenton-like reaction systems act as catalyst car-riers to disperse active species,and as adsorbents to enrich reactants.They promote electron and mass transfer,prevente metal leach-ing and improve the efficiency of contaminant removal.They also promote the production and activation of hydrogen peroxide in electro-Fenton reactions and inhibit the recombination rate of electron/hole pairs in photo-Fenton reactions.There are well-de-veloped synthesis methods for porous carbons,giving them different functionalities,and a high chemical and thermal stability,mak-ing them favored materials for use in these reactions.Recent developments in these fields are discussed.
作者
潘哲伦
钱旭芳
PAN Zhe-lun;QIAN Xu-fang(School of Environmental Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《新型炭材料》
SCIE
EI
CAS
CSCD
北大核心
2022年第1期180-195,共16页
New Carbon Materials
基金
国家自然科学基金(21777097)
国家科技部基金(2018YFC1802001).
关键词
多孔炭
类芬顿反应
过氧化氢合成
吸附剂
Porous carbon materials
Fenton-like reaction
H_(2)O_(2)production
Adsorbent
