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Применить Всего найдено 3. Отображено 3.
02-05-2023 дата публикации

Hydrophobic mesoporous TiO2/carbonaceous composite material as well as preparation method and application thereof

Номер: CN116037182A
Автор: MAO HUIHUI, WANG JINGYING, REN JUNJIE, CHEN FEIKE, HUA YUTING, ZHANG QING, GUI HAOGUAN, GAO BINGYING, YAO CHAO
Принадлежит:

The invention belongs to the field of nano composite material catalysis, and particularly relates to a hydrophobic mesoporous TiO2/carbon composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: firstly, preparing a porous metal oxide TiO2 by adopting a solvent-free self-assembly method, preparing TiO2/C-SO3H by taking TiO2, furfural and isethionic acid as raw materials in a hydrothermal manner, and then carrying out surface modification on the TiO2/C-SO3H by using an amino silane coupling agent to obtain the composite catalytic material. A Lewis acidic TiO2 metal site and a Bronsted acidic-SO3H group have a synergistic effect, after an amino silane coupling agent is modified and introduced, not only is the surface hydrophobic property brought, but also an amino group and a sulfonic acid group form an inner salt structure, loss and leaching of the sulfonic acid group in the reaction process are effectively prevented ...

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Номер записи: 1
25-04-2023 дата публикации

Preparation method of hammer coralline Bi2S3/Ni/g-C3N4 ternary composite material and application of composite material

Номер: CN115999612A
Автор: MAO HUIHUI, HUA YUTING, CHEN FEIKE, WANG JINGYING, GUI HAOGUAN, YAO CHAO
Принадлежит:

The invention belongs to the field of material preparation and application, and discloses a preparation method of a hammer coralline-shaped Bi2S3/Ni/g-C3N4 ternary composite material and application of the hammer coralline-shaped Bi2S3/Ni/g-C3N4 ternary composite material in efficient degradation of pollutants in Fenton-like reaction. The preparation method comprises the following steps: preparing nickel-doped carbon nitride Ni/g-C3N4 from a carbon nitride precursor and a nickel source as raw materials, further synthesizing micro-rod-shaped bismuth oxide from a bismuth source, and finally carrying out self-assembly on the micro-rod-shaped bismuth oxide and the nickel-doped carbon nitride to form the hammer coralline-shaped Bi2S3/Ni/g-C3N4 ternary composite material by taking thioacetamide as a sulfur source under a hydrothermal condition, the existence of bismuth sulfide provides a variable valence opportunity for nickel metal, PMS in a solution system can be better activated to achieve ...

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Номер записи: 2
23-06-2023 дата публикации

Preparation method and application of monodisperse metal M loaded graphite phase carbon nitride material M/g-C3N4H

Номер: CN116273113A
Автор: MAO HUIHUI, HUA YUTING, SUN ZHONGHUA, WANG JINGYING, CHEN FEIKE, GAO BINGYING, YAO CHAO
Принадлежит:

The invention belongs to the field of preparation and application of nano composite materials, and particularly provides a preparation method of a monodisperse metal M loaded graphite phase carbon nitride material M/g-C3N4H. The metal is Ni, Co or Fe, and the preparation method comprises the following steps: by taking dicyandiamide as a precursor, loading metal M under one-pot calcination to form an M-nitrogen ligand, and then reducing in a hydrogen atmosphere. The M/g-C3N4H nano material disclosed by the invention is good in metal atom dispersity, so that the catalytic performance of the M/g-C3N4H nano material is further improved; a small amount of potassium hydrogen persulfate is used as a boosting agent, so that the catalytic efficiency of the whole Fenton-like system can be greatly improved; the preparation method is simple, the whole preparation process is mild in condition and easy to control, and the method is an effective method capable of improving the degradation efficiency of ...

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Номер записи: 3