Processing of chromium oxide-pillared layered HMWO 6 (M = Nb, Ta) and their catalytic performances for photodegradation of rhodamine B

Guo, Xianghai; Wang, Shuo-Feng; Shu-Min, Liu; Zhao, Lei; Yu, Tao; Duan, Wen-Feng; Xu, Xiangqian

doi:10.1016/j.ica.2014.06.012

Cited by 9 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The low level of impurities suggests that the pigments could be used in many other industrial processes requiring chromium, such as the synthesis of catalysts, given that chromium oxide is widely used as a catalyst or as a matrix for the synthesis of catalysts. [91][92][93] 3.5 X-ray absorption spectroscopy (XAS) 3.5.1 X-ray absorption spectroscopy (XAS) of the liquid waste. Fig.…”

Section: X-ray Fluorescence Spectrometry (Xrf)mentioning

confidence: 99%

Recycling of chromium wastes from the tanning industry to produce ceramic nanopigments

et al. 2016

View full text Add to dashboard Cite

show abstract

Section: X-ray Fluorescence Spectrometry (Xrf)mentioning

confidence: 99%

Recycling of chromium wastes from the tanning industry to produce ceramic nanopigments

et al. 2016

View full text Add to dashboard Cite

show abstract

“…[7][8][9][10][11][12][13][14][15][16] In recent years, more and more interests have been focused on pillaring of the layered transition-metal oxides with transition-metal oxides. [13,[17][18][19][20][21][22][23][24][25] The general procedure for pillaring of the layered metal oxides with various inorganic oxides consists of two steps. Firstly the protonated layered parent is subjected to react with long-chain n-alkylamine based on acid-base reaction mechanism, giving rise to an n-alkylamine-pre-expanded layered intermediate.…”

Section: Introductionmentioning

confidence: 99%

“…Over the past decades, pillaring of the layered compounds with silica or alumina as the pillars has been extensively investigated, and a number of silica‐ and alumina‐pillared layered transition‐metal oxides have been presented . In recent years, more and more interests have been focused on pillaring of the layered transition‐metal oxides with transition‐metal oxides . The general procedure for pillaring of the layered metal oxides with various inorganic oxides consists of two steps.…”

Section: Introductionmentioning

confidence: 99%

Zirconia‐Pillaring in Layered HNb₃O₈ and HNbMoO₆

Wang

Liu

et al. 2020

Chemistry An Asian Journal

View full text Add to dashboard Cite

In this work, the pillaring of two layered niobiumbased oxides (HNb 3 O 8 and HNbMoO 6) with zirconia was investigated in detail. Two novel zirconia-pillared layered metal oxides, zirconia-pillared layered HNb 3 O 8 and zirconiapillared layered HNbMoO 6 , have been successfully prepared. Both pillared products exhibited a higher thermal stability exceeding 673 K. For the pillaring of layered HNb 3 O 8 , two different pre-expanding agents, 1-dodecanamine and 1,12dodecanediamine, were alternatively used, and two kinds of zirconium-pillaring solutions containing zirconium(IV) polyoxocations obtained through two different ways were employed. The 1,12-dodecanediamine-pre-expanded layered intermediate was applicable and 1-dodecanamine-pre-expanded one was not applicable to the intercalation of zirconium(IV) polyoxocations in interlayer regions of the layered niobium-based oxides. More interestingly, the zirconium-pillaring solutions prepared by using an appropriate amount of diethylene glycol as stabilizing agent was advantage for constructing the ordered zirconia-pillared product, whereas the zirconium-pillaring solutions obtained in the case of absence of diethylene glycol seemed not to conduct well an ions-exchange reaction with the alkylaminepre-expanded layered intermediates. The order degree of zirconia-pillared layered transition metal oxides was closely related to the host sheets. The zirconia-pillared layered HNb 3 O 8 contained more defects, while the zirconia-pillared layered HNbMoO 6 had fewer defects.

show abstract

Solar Mineralization of Hard‐Degradable Amphetamine Using TiO₂/RGO Nanocomposite

2019

View full text Add to dashboard Cite

Illicit drugs have attracted much extensive scientific interest as a class of environmental contaminants due to their frequent occurrence, hard degradability, and potential risk to aquatic life and human. In this work, TiO2/reduced graphene oxide (RGO) nanocomposites were used to degrade amphetamine under solar light. Among the prepared photocatalysts, nanocomposite with 30 mg RGO (TiO2/RGO30) possessed the best photocatalytic activity in the photodegradation of hard‐degradable amphetamine under solar light irradiation. The mineralization efficiency of 91% were achieved after 180 min solar light irradiation. The enhanced photocatalytic degradation of TiO2/RGO30 nanocomposite could be attributed to the increased optical absorption, effective separation, and migration of photogenerated charge carriers as the results of introducing RGO in the nanostructure. Several intermediates were identified during the degradation process using liquid chromatography tandem mass spectrometry (HPLC/MS‐MS) technique. Based on the identified intermediates, the repeated hydroxylation of the amphetamine and its fragmentation are proposed for the degradation pathway.

show abstract

Processing of chromium oxide-pillared layered HMWO 6 (M = Nb, Ta) and their catalytic performances for photodegradation of rhodamine B

Cited by 9 publications

References 16 publications

Recycling of chromium wastes from the tanning industry to produce ceramic nanopigments

Recycling of chromium wastes from the tanning industry to produce ceramic nanopigments

Zirconia‐Pillaring in Layered HNb₃O₈ and HNbMoO₆

Solar Mineralization of Hard‐Degradable Amphetamine Using TiO₂/RGO Nanocomposite

Contact Info

Product

Resources

About

Processing of chromium oxide-pillared layered HMWO 6 (M = Nb, Ta) and their catalytic performances for photodegradation of rhodamine B

Cited by 9 publications

References 16 publications

Recycling of chromium wastes from the tanning industry to produce ceramic nanopigments

Recycling of chromium wastes from the tanning industry to produce ceramic nanopigments

Zirconia‐Pillaring in Layered HNb3O8 and HNbMoO6

Solar Mineralization of Hard‐Degradable Amphetamine Using TiO2/RGO Nanocomposite

Contact Info

Product

Resources

About

Zirconia‐Pillaring in Layered HNb₃O₈ and HNbMoO₆

Solar Mineralization of Hard‐Degradable Amphetamine Using TiO₂/RGO Nanocomposite