Nitric Acid-treated Bentonite Clay: A Novel Oxidation Supported Reagent
Bentonite clay washed with 6 M nitric acid is active in the oxidation of benzaldehyde to benzoic acid. There is only one product, in addition to small amounts of carbonaceous material. The reactive species is believed to be nitrate ions present in the interlamellar species, together with an interlam...
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SAGE Publishing
1990-09-01
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Series: | Adsorption Science & Technology |
Online Access: | https://doi.org/10.1177/026361749000700307 |
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author | Charis R. Theocharis John B. Tomlinson Adam O. Whelan George C.P. Zychowicz |
author_facet | Charis R. Theocharis John B. Tomlinson Adam O. Whelan George C.P. Zychowicz |
author_sort | Charis R. Theocharis |
collection | DOAJ |
description | Bentonite clay washed with 6 M nitric acid is active in the oxidation of benzaldehyde to benzoic acid. There is only one product, in addition to small amounts of carbonaceous material. The reactive species is believed to be nitrate ions present in the interlamellar species, together with an interlamellar acidic aluminium species which is useful in maintaining the crystallinity of the acid-washed clay. The reaction is possible when free 6 M acid is introduced into the reaction mixture together with untreated clay, but in that case more carbonaceous material is formed. There is evidence that acid treatment leads to the introduction of acidic aluminium species in the interlamellar region which may act as pillars; these are removed on washing. |
format | Article |
id | doaj-art-84876492e1d74006991f0c5f8fa604e2 |
institution | Kabale University |
issn | 0263-6174 2048-4038 |
language | English |
publishDate | 1990-09-01 |
publisher | SAGE Publishing |
record_format | Article |
series | Adsorption Science & Technology |
spelling | doaj-art-84876492e1d74006991f0c5f8fa604e22025-02-03T10:07:59ZengSAGE PublishingAdsorption Science & Technology0263-61742048-40381990-09-01710.1177/026361749000700307Nitric Acid-treated Bentonite Clay: A Novel Oxidation Supported ReagentCharis R. Theocharis0John B. Tomlinson1Adam O. Whelan2George C.P. Zychowicz3Porous Solids Groups, Department of Chemistry, Brunel University, Uxbridge. Middlesex, UB8 3PH, U.K.Porous Solids Groups, Department of Chemistry, Brunel University, Uxbridge. Middlesex, UB8 3PH, U.K.Porous Solids Groups, Department of Chemistry, Brunel University, Uxbridge. Middlesex, UB8 3PH, U.K.Porous Solids Groups, Department of Chemistry, Brunel University, Uxbridge. Middlesex, UB8 3PH, U.K.Bentonite clay washed with 6 M nitric acid is active in the oxidation of benzaldehyde to benzoic acid. There is only one product, in addition to small amounts of carbonaceous material. The reactive species is believed to be nitrate ions present in the interlamellar species, together with an interlamellar acidic aluminium species which is useful in maintaining the crystallinity of the acid-washed clay. The reaction is possible when free 6 M acid is introduced into the reaction mixture together with untreated clay, but in that case more carbonaceous material is formed. There is evidence that acid treatment leads to the introduction of acidic aluminium species in the interlamellar region which may act as pillars; these are removed on washing.https://doi.org/10.1177/026361749000700307 |
spellingShingle | Charis R. Theocharis John B. Tomlinson Adam O. Whelan George C.P. Zychowicz Nitric Acid-treated Bentonite Clay: A Novel Oxidation Supported Reagent Adsorption Science & Technology |
title | Nitric Acid-treated Bentonite Clay: A Novel Oxidation Supported Reagent |
title_full | Nitric Acid-treated Bentonite Clay: A Novel Oxidation Supported Reagent |
title_fullStr | Nitric Acid-treated Bentonite Clay: A Novel Oxidation Supported Reagent |
title_full_unstemmed | Nitric Acid-treated Bentonite Clay: A Novel Oxidation Supported Reagent |
title_short | Nitric Acid-treated Bentonite Clay: A Novel Oxidation Supported Reagent |
title_sort | nitric acid treated bentonite clay a novel oxidation supported reagent |
url | https://doi.org/10.1177/026361749000700307 |
work_keys_str_mv | AT charisrtheocharis nitricacidtreatedbentoniteclayanoveloxidationsupportedreagent AT johnbtomlinson nitricacidtreatedbentoniteclayanoveloxidationsupportedreagent AT adamowhelan nitricacidtreatedbentoniteclayanoveloxidationsupportedreagent AT georgecpzychowicz nitricacidtreatedbentoniteclayanoveloxidationsupportedreagent |