Advances in Dye Degradation

Volume: 1

A Review of Various Materials under Different Conditions for Efficient Photocatalytic Dye Degradation

Author(s): SP. Keerthana*, R. Yuvakkumar* and G. Ravi

Pp: 156-166 (11)

DOI: 10.2174/9789815179545123010010

* (Excluding Mailing and Handling)

Abstract

Large amounts of more toxic dye water have been released into the environment recently as a result of the expansion of the textile industry. There are numerous approaches that have been found and applied to lessen the water's toxicity. One of the processes that operate when there is light illumination is photocatalysis. The electrons in the valence band absorb light illumination when exposed to it, excite the conduction band, and create a hole in the valence band. The dye compounds will be lessened by the recombination of these created electron-hole pairs. Materials for effective photocatalysis are being researched. Many factors affect the photocatalytic performance, including narrow bandgap, high surface area, and good recombination rate. TiO2 is a semiconducting material, however, due to its higher bandgap values, it has a lower potential when exposed to light. This article provides a brief overview of several materials that can be affected by a variety of factors, such as doping, surfactant addition, and composites made of carbon-based materials. It also compares how well each material performs in terms of lowering hazardous pollutants and provides an illustration of the mechanism. 

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      • 16. vendor/laravel/framework/src/Illuminate/Pipeline/Pipeline.php:183
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      • 18. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
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      • 14. app/Models/Subject.php:238
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      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
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      • 14. app/Models/Subject.php:255
      • 15. app/Http/Controllers/ChapterController.php:1435
      • 16. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
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      • 17. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
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      • 12. app/Http/Controllers/ChapterController.php:1465
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
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      240μsalphaeurekaselec_live_10_06_2022ContentAccess.php#647
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      • 11. app/Models/ContentAccess.php:647
      • 12. app/Http/Controllers/ChapterController.php:1478
      • 13. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 14. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
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      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1518
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Trial Access" as access_base_text, CASE j.type WHEN 111 THEN true ELSE false END as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_trail` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314530707 and j.to_ip >=314530707 )) and ((j.from_date <= 1739834434 and j.to_date >= 1739834434 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 21158) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Subscribed" as access_base_text, false as terms_popup, "S" as content_download_type, null as restricted_user_access_key, null as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_corporate` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314530707 and j.to_ip >=314530707 )) and ((j.from_date <= 1739834434 and j.to_date >= 1739834434 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 21158) union (select j.user_access_id,j.volume_id,j.user_id,j.from_ip,j.to_ip,j.type,j.track,"Token Based Access" as access_base_text, false as terms_popup, "R" as content_download_type, j.uc_id as restricted_user_access_key, "v" as restricted_user_access_type, CASE j.track WHEN 0 THEN false ELSE true END as tracksAccessByVolume,"chapter" as access_level, j.chapter_id from `user_access_chapter_token` as `j` inner join `user_access_info` as `info` on `j`.`user_access_id` = `info`.`user_access_id` where ((j.from_ip <= 314530707 and j.to_ip >=314530707 )) and ((j.from_date <= 1739834434 and j.to_date >= 1739834434 and j.perpetual= 0) or (j.from_date is null and j.to_date is null and j.perpetual= 1)) and j.chapter_id = 21158)
      600μsalphaeurekaselec_live_10_06_2022UserAccess.php#1266
      Backtrace
      • 13. app/Models/UserAccess/UserAccess.php:1266
      • 14. app/Http/Controllers/ChapterController.php:1549
      • 15. vendor/laravel/framework/src/Illuminate/Routing/Controller.php:54
      • 16. vendor/laravel/framework/src/Illuminate/Routing/ControllerDispatcher.php:43
      • 17. vendor/laravel/framework/src/Illuminate/Routing/Route.php:260
    • select b.banner_link, b.banner_name, b.banner_script, b.banner_remarks, b.banner_file_name, b.banner_placement, bd.content_type, bd.content_id from `tbl_banner` as `b` inner join `tbl_banner_detail` as `bd` on `bd`.`banner_id` = `b`.`banner_id` inner join `users` as `u` on `u`.`id` = `b`.`updated_by` where `b`.`banner_ebook` = 1 and `bd`.`content_type` = 'B' and `bd`.`content_id` = 3637 and `b`.`banner_from_date` <= 1739834434 and `b`.`banner_to_date` >= 1739834434 and `b`.`banner_status` = 'A' order by `b`.`banner_id` desc
      1.05msalphaeurekaselec_live_10_06_2022Banner.php#95
      Bindings
      • 0: 1
      • 1: B
      • 2: 3637
      • 3: 1739834434
      • 4: 1739834434
      • 5: A
      Backtrace
      • 13. app/Models/Banner.php:95
      • 14. app/Http/helpers.php:404
      • 17. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 18. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    • select count(*) as aggregate from `uc_cart_products` where cart_id='5aec2feb2329030cfdbd0e4e4ed1670a'
      200μsalphaeurekaselec_live_10_06_2022Cart.php#271
      Backtrace
      • 15. app/Models/Cart.php:271
      • 16. view::layouts._header:260
      • 18. vendor/laravel/framework/src/Illuminate/Filesystem/Filesystem.php:124
      • 19. vendor/laravel/framework/src/Illuminate/View/Engines/PhpEngine.php:58
      • 20. vendor/laravel/framework/src/Illuminate/View/Engines/CompilerEngine.php:73
    App\Models\Chapter
    1Chapter.php#?
    App\Models\Ebook
    1Ebook.php#?
        _token
        v1GiI22wq45UkBYLJFAOhFQeaRqoMqIEN7dXsUCk
        uc_cart_id
        5aec2feb2329030cfdbd0e4e4ed1670a
        _previous
        array:1 [ "url" => "https://alpha.eurekaselect.com/chapter/21158" ]
        _flash
        array:2 [ "old" => [] "new" => [] ]
        PHPDEBUGBAR_STACK_DATA
        []
        path_info
        /chapter/21158
        status_code
        200
        
        status_text
        OK
        format
        html
        content_type
        text/html; charset=UTF-8
        request_query
        []
        
        request_request
        []
        
        request_headers
        0 of 0
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        request_cookies
        0 of 0
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        response_headers
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        ClearShow all
        Date ↕MethodURLData
        #12025-02-17 23:20:34GET/chapter/21158112192