Water recovery system for use in confined spaces
US-2015353401-A1 · Dec 10, 2015 · US
Photocatalysts based on bismuth oxyhalide, process for their preparation and uses thereof
US11319227B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11319227-B2 |
| Application number | US-202016946202-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 10, 2020 |
| Priority date | Aug 5, 2013 |
| Publication date | May 3, 2022 |
| Grant date | May 3, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
The invention provides a process for the preparation of bismuth oxyhalide, comprising a precipitation of bismuth oxyhalide in an acidic aqueous medium in the presence of a reducing agent. Also provided are bismuth oxyhalide compounds doped with elemental bismuth Bi (0) . The use of Bi (0) doped-bismuth oxyhalide as photocatalysts in water purification is also described.
First claim
Opening claim text (preview).
The invention claimed is: 1. Bi (0) -doped bismuth oxyhalide, wherein the halide is chloride, bromide or mixed chloride-bromide, wherein the molar concentration of the Bi (0) dopant is from 0.1 to 7.0%, calculated relative to the total amount of trivalent and zerovalent bismuth. 2. Bi (0) -doped bismuth oxyhalide according to claim 1 , wherein the molar concentration of the Bi (0) dopant is from 0.1 to 5.0%. 3. Bi (0) -doped bismuth oxyhalide according to claim 1 , selected from the group consisting of Bi (0) doped-BiOCl, Bi (0) doped-BiOBr and Bi (0) doped-BiOCl y Br 1−y wherein y is in the range from 0.6 to 0.95. 4. Bi (0) -doped bismuth oxyhalide according to claim 3 , which is Bi (0) doped-BiOCl y Br 1−y wherein y is in the range from 0.7 to 0.95. 5. Bi (0) -doped bismuth oxyhalide according to claim 1 , characterized in that its X-ray photoelectron emission spectrum exhibits a peak at 157±1 eV which is assigned to metallic bismuth.
Assignees
Inventors
Classifications
Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties · CPC title
Scanning electron microscopy; Transmission electron microscopy · CPC title
X-ray diffraction · CPC title
characterised by their crystalline properties, e.g. semi-crystalline (catalysts comprising carbon B01J21/18; molecular sieves B01J29/00) · CPC title
extending in three dimensions · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11319227B2 cover?
- The invention provides a process for the preparation of bismuth oxyhalide, comprising a precipitation of bismuth oxyhalide in an acidic aqueous medium in the presence of a reducing agent. Also provided are bismuth oxyhalide compounds doped with elemental bismuth Bi (0) . The use of Bi (0) doped-bismuth oxyhalide as photocatalysts in water purification is also described.
- Who is the assignee on this patent?
- Yissum Res Dev Co Of Hebrew Univ Jerusalem Ltd
- What technology area does this patent fall under?
- Primary CPC classification C02F1/725. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 03 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).