鍏夊偓鍖栨哀鍖栬澶嘃/span>

鍏夊偓鍖栨槸鎸囧湪鍏夌殑浣滅敤涓嬭繘琛岀殑鍖栧鍙嶅簲銆傚厜鍖栧鍙嶅簲闇€瑕佸垎瀛愬惛鏀剁壒瀹氭尝闀跨殑鐢电杈愬皠锛屽彈婵€浜х敓鍒嗗瓙婵€鍙戞€侊紝缁ц€屽彂鐢熷寲瀛﹀弽搴旂敓鎴愭柊鐨勭墿璐ㄦ垨鍙樻垚寮曞彂鐑弽搴旂殑涓棿鍖栧浜х墿銆傚厜鍌寲鍓傛槸鎸囧湪鍏夌殑鐓у皠涓嬶紝鑷韩涓嶈捣鍙樺寲锛屽嵈鍙互淇冭繘鍖栧鍙嶅簲鐨勭墿璐ㄣ€傚畠鍒╃敤鍏夎兘杞寲鎴愬寲瀛﹀弽搴旀墍闇€鐨勮兘閲忥紝浜х敓鍌寲浣滅敤锛屼娇鍛ㄥ洿鐨勬哀姘斿強姘村垎瀛愭縺鍙戞垚**姘у寲鍔涚殑鑷敱鍩烘垨璐熺瀛愩€侟/span>

鍏夊偓鍖栨哀鍖栧垎涓哄潎鐩稿厜鍌寲姘у寲鍜岄潪鍧囩浉鍏夊偓鍖栨哀鍖栥€傚潎鐩稿厜鍌寲姘у寲涓昏涓裹/span>UV/Fenton璇曞墏娉曘€侟/span>Fenton璇曞墏涓裹/span>Fe2+鍜孅/span>H2O2鐨勭粍鍚堬紝鍏舵哀鍖栨満鐞嗕负Fe2++H2O2鈫捤橭H+OH-+Fe3+Fe3++H2O2鈫扚e2++藱HO2+H+锛屽洜姝｜/span>Fenton璇曞墏鍦ㄦ按澶勭悊涓叿鏈夋哀鍖栧拰娣峰嚌涓ょ浣滅敤锛屽湪榛戞殫涓氨鑳介檷瑙ｆ湁鏈虹墿锛岃妭鐪佷簡璁惧鎶曡祫锛岀劧鑰孅/span>H2O2鍒╃敤鐜囦笉楂橈紝涓嶈兘鍏呭垎鐭垮寲鏈夋満鐗┿€傚綋鏈夊厜杈愬皠(濡傜传澶栧厜)鏃讹紝Fenton璇曞墏姘у寲鎬ф樉钁楁彁楂樸€侟/span>UV/Fenton娉曚篃鍙厜鍔?/span>Fenton娉曪紝鏄櫘閫欬/span>Fenton娉曚笌UV/H2O2涓ょ绯荤粺鐨勫鍚堜骇鐗╋紝闄嶄綆Fe2+鐢ㄩ噺鐨勫悓鏃朵繚鎸?/span>H2O2杈冮珮鐨勫埄鐢ㄧ巼锛岃€孅/span>UV鍜孅/span>Fe2+瀵更/span>H2O2鐨勫偓鍖栧垎瑙ｅ瓨鍦ㄥ崗鍚屾晥搴旓紝藱OH鐨勭敓鎴愰€熺巼杩滃ぇ浜庝紶缁烖/span>Fenton娉曞拰绱鍌寲鍒嗚ВH2O2閫熺巼鐨勭畝鍗曞姞鍜屻€傚洜姝｜/span>UV/Fenton璇曞墏娉曞湪澶勭悊闅鹃檷瑙ｆ湁鏈烘薄鏌撶墿鏃跺叿鏈夌嫭鐗圭殑浼樺娍锛屽緢鏈夊簲鐢ㄥ墠鏅€侟/span>

闈炲潎鐩稿厜鍌寲姘у寲鎶€鏈富瑕佷负TiO2鍏夊偓鍖栨哀鍖栨妧鏈€傝嚜浠庢棩鏈鑰匋/span>Fujishima鍜孅/span>Honda浜嶞/span>1972骞村湪鍗婂浣掽/span>TiO2鐢垫瀬涓婂彂鐜颁簡姘寸殑鍏夊偓鍖栧垎瑙ｄ綔鐢紝寮€杈熶簡鍗婂浣撳厜鍌寲杩欎竴鏂伴鍩熴€侟/span>1977骞达紝Yokota绛夊彂鐜?/span>TiO2鍦ㄥ厜鐓ф潯浠朵笅瀵逛笝鐑幆姘у寲鍏锋湁鍏夊偓鍖栨椿鎬э紝浠庤€屾嫇瀹戒簡鍏夊偓鍖栫殑搴旂敤鑼冨洿锛屼负鏈夋満鐗╂哀鍖栧弽搴旀彁渚涗簡涓€鏉℃柊鐨勬€濊矾銆傛鍚庝笘鐣岃寖鍥村唴渚垮紑濮嬩簡鍏夊偓鍖栨哀鍖栨妧鏈湪姹℃按澶勭悊銆佺┖姘斿噣鍖栥€佹姉鑿屾潃姣掋€佹湁鏈哄悎鎴愮瓑鏂归潰鐨勫簲鐢ㄧ爺绌讹紝鍗婂浣撳厜鍌寲鎶€鏈彈鍒板叏涓栫晫鐨勫箍娉涘叧娉紝骞跺緱鍒颁簡蹇€熷彂灞曪紝鎴愪负鍥介檯涓婂仛娲昏穬鐨勭爺绌堕鍩熶箣涓€銆侟/span>

涓嶅悓绫诲瀷鏈夋満鐗╃殑鍏夊偓鍖栭檷瑙Ⅻ/span>

鍗婂浣撳厜鍌寲鍓傚ぇ澶氭槸n鍨嬪崐瀵间綋鏉愭枡(褰撳墠浠?/span>TiO2浣跨敤*骞挎硾)锛屽叿鏈夊尯鍒簬閲戝睘鎴栫粷缂樼墿璐ㄧ殑鐗瑰埆鐨勮兘甯︾粨鏋勶紝鍗冲湪浠峰甫鍜屽甯︿箣闂村瓨鍦ㄤ竴涓甯︺€傜敱浜庡崐瀵间綋鐨勫厜鍚告敹闃堝€间笌甯﹂殭鍏锋湁鍏紡K=1240/Eg(eV)鐨勫叧绯伙紝鍥犳甯哥敤鐨勫甯﹂殭鍗婂浣撶殑鍚告敹娉㈤暱闃堝€煎ぇ閮藉湪绱鍖哄煙銆傚湪鍏夌収涓嬶紝濡傛灉鍏夊瓙鐨勮兘閲忓ぇ浜庡崐瀵间綋绂佸甫瀹藉害锛屽叾浠峰甫涓婄殑鐢靛瓙(e-)灏变細琚縺鍙戝埌瀵煎甫涓婏紝鍚屾椂鍦ㄤ环甯︿笂浜х敓绌虹┐(h+)銆傚綋瀛樺湪鍚堥€傜殑淇樿幏鍓傘€佽〃闈㈢己闄锋垨鑰呭叾浠栧洜绱犳椂锛岀數瀛愬拰绌虹┐鐨勫鍚堝緱鍒版姂鍒讹紝灏变細鍦ㄥ偓鍖栧墏琛ㄩ潰鍙戠敓姘у寲鈥擖/span>杩樺師鍙嶅簲銆備环甯︾┖绌存槸鑹ソ鐨勬哀鍖栧墏锛屽甯︾數瀛愭槸鑹ソ鐨勮繕鍘熷墏锛屽湪鍗婂浣撳厜鍌寲鍙嶅簲涓紝涓€鑸笌琛ㄩ潰鍚搁檮鐨凕/span>H2O銆?/span>O2鍙嶅簲鐢熸垚藱OH鍜岃秴姘х瀛忺/span>O2-锛岃兘澶熸妸鍚勭鏈夋満鐗╃洿鎺ユ哀鍖栨垚CO2銆?/span>H2O绛夋棤鏈哄皬鍒嗗瓙锛岀數瀛愪篃鍏锋湁寮鸿繕鍘熸€э紝鍙互杩樺師鍚搁檮鍦ㄥ叾琛ㄩ潰鐨勭墿璐ㄣ€傛縺鍙戞€佺殑瀵煎甫鐢靛瓙鍜屼环甯︾┖绌磋兘閲嶆柊鍚堝苟锛屽苟浜х敓鐑兘鎴栧叾浠栧舰寮忔暎鍙戞帀銆侟/span>

鐗瑰埗娲绘€х偔绾ょ淮杩囨护灞傘€侀噾灞炰笣鍧囨祦缃戠敤浜庤繃婊ょ矇灏樺強閮ㄥ垎VOCs姘斾綋

鍏夊偓鍖栨哀鍖栧叿鏈変互涓嬬壒鐐癸細

涓€銆佷綆娓╂繁搴﹀弽搴旓細鍏夊偓鍖栨哀鍖栭€傚悎鍦ㄥ父娓╀笅灏嗗簾鑷皵浣撳畬鍏ㄦ哀鍖栨垚鏃犳瘨鏃犲鐨勭墿璐紝閫傚悎澶勭悊楂樻祿搴︺€佹皵閲忓ぇ銆佺ǔ瀹氭€у己鐨勬湁姣掓湁瀹虫皵浣撶殑搴熸皵澶勭悊銆侟/span>

浜屻€佹湁鏁堝噣鍖栧交搴曪細閫氳繃鍏夊偓鍖栨哀鍖栧彲鐩存帴灏嗙┖姘斾腑鐨勫簾鑷皵浣撳畬鍏ㄦ哀鍖栨垚鏃犳瘨鏃犲鐨勭墿璐紝涓嶇暀浜屾姹℃煋銆侟/span>

涓夈€佺豢鑹茶兘婧愶細鍏夊偓鍖栨哀鍖栧埄鐢ㄤ汉宸ョ传澶栫嚎鐏浜х敓鐨勭湡绌烘尝绱鍏夌殑鍚屾椂鍙湜鍒╃敤澶槼鍏変綔涓鸿兘婧愭潵娲诲寲鍌寲鍓傦紝椹卞姩姘у寲鈥擖/span>杩樺師鍙嶅簲锛岃€屼笖鍏夊偓鍖栧墏鍦ㄥ弽搴旇繃绋嬩腑骞朵笉娑堣€楋紝鍒╃敤绌烘皵涓殑姘т綔涓烘哀鍖栧墏锛屾湁鏁堥檷瑙ｆ湁姣掓湁瀹冲簾鑷皵浣撴垚涓哄厜鍌寲姘у寲鑺傜害鑳芥簮鐨?*鐗圭偣銆侟/span>

鍥涖€佹哀鍖栨€у己锛氬崐瀵间綋鍏夊偓鍖栧叿鏈夋哀鍖栨€у己鐨勭壒鐐癸紝瀵硅嚟姘ч毦浠ユ哀鍖栫殑鏌愪簺鏈夋満鐗╂湁鏁堝姞浠ュ垎瑙ｏ紝鎵€浠ュ闅句互闄嶈В鐨勬湁鏈虹墿鍏锋湁鐗瑰埆鎰忎箟锛屽厜鍌寲鐨勬湁鏁堟哀鍖栧墏鏄緹鍩鸿嚜鐢卞熀(OH-)鍜岃秴姘х瀛愯嚜鐢卞熀(O2-銆?/span>O-)锛屽叾姘у寲鎬ч珮浜庡父瑙佺殑鑷哀銆佸弻姘ф按銆侀珮閿伴吀閽俱€佹姘吀绛夈€侟/span>

浜斻€佸箍璋辨€э細鍏夊偓鍖栨哀鍖栧浠庣緹鍒扮晶閰哥殑绉嶇被浼楀鐨勬湁鏈虹墿閮芥湁鏁堬紝鍗充娇瀵瑰師瀛愭湁鏈虹墿濡傚崵浠ｇ儍銆佹煋鏂欍€佸惈姘湁鏈虹墿銆佹湁鏈虹７鏉€铏墏涔熸湁寰堝ソ鐨勫幓闄ゆ晥鏋滐紝鍙缁忚繃涓€瀹氭椂闂寸殑鍙嶅簲渚垮彲杈惧埌瀹屽叏鍑€鍖栥€侟/span>

鍏€佸鍛介暱锛氱悊璁轰笂锛屽厜鍌寲鍓傜殑瀵垮懡鏄棤闄愰暱鐨勶紝鏃犻渶鏇存崲銆侟/span>

TiO2浣滀负鐩墠搴旂敤*涓哄箍娉涚殑鍗婂浣撳厜鍌寲鍓傦紝鏈変笁绉嶄笉鍚岀殑鏅朵綋缁撴瀯锛氶攼閽涚熆缁撴瀯銆侀噾绾㈢煶缁撴瀯鍜屾澘閽涚熆缁撴瀯銆傞噾绾㈢煶缁撴瀯*涓虹ǔ瀹氾紝浠庝綆娓╁埌鐔旂偣閮戒笉浼氬彂鐢熸櫠鐩歌浆鍙楛/span>;閿愰挍鐭跨粨鏋勬涔嬶紝鍦ㄥ娓╀笅绋冲畾;鏉块挍鐭跨粨鏋勫垯寰堝皯瑙併€傚叿鏈夊厜鍌寲浣滅敤鐨勪富瑕佹槸閿愰挍鐭跨粨鏋勫拰閲戠孩鐭崇粨鏋勶紝鍏朵腑浠ラ攼閽涚熆缁撴瀯鐨勫偓鍖栨椿鎬?*銆傞攼閽涚熆鍨婞/span>TiO2鍚告敹娉㈤暱灏忎簬387nm鐨勫厜锛岄噾绾㈢煶鍨婞/span>TiO2鍚告敹娉㈤暱灏忎簬413nm鐨勫厜銆侟/span>TiO2浣滀负鍏夊偓鍖栧墏鍏锋湁浠ヤ笅鐗圭偣锛氬叿鏈夊悎閫傜殑鍗婂浣撶甯﹀搴?/span>;鍏锋湁鑹ソ鐨勬姉鍏夎厫铓€鎬у拰鍖栧绋冲畾鎬?/span>;浠锋牸浣庡粔锛屽師鏂欐潵婧愪赴瀵岋紝鎴愭湰浣嶞/span>;鍏夊偓鍖栨椿鎬ч珮(鍚告敹绱鍏夋€ц兘寮猴紝绂佸甫鍜屽甯︿箣闂寸殑鑳介殭澶э紝鍏夌敓鐢靛瓙鐨勮繕鍘熸€у拰绌虹┐鐨勬哀鍖栨€у己)锛涘寰堝鏈夋満姹℃煋鐗╂湁杈冨己鐨勫惛闄勪綔鐢ㄣ€侟/span>

涓轰娇鍏夊偓鍖栧墏鍏锋湁鍚堥€傜殑褰㈢姸銆佸昂瀵稿拰鏈烘寮哄害浠ョ鍚堝伐涓氬弽搴斿櫒鐨勬搷浣滆姹傦紝鍏夊偓鍖栧墏闇€瑕佽浇浣撲互鏀寔娲绘€х粍鍒嗭紝浣垮寲鍓傚叿鏈夌壒瀹氱殑鐗╃悊鎬х姸銆傚厜鍌寲鍓傝浇浣撹鑳芥敼鍠勬墍鎷呰浇鐨勭墿璐ㄧ殑缁勭粐缁撴瀯(濡傚鍔犲瓟闅欍€佽〃闈㈢Н绛堻/span>)锛屾湁鍒╀簬鍏夊偓鍖栧墏鍐嶇敓銆傝壇濂界殑鍏夊偓鍖栧墏杞戒綋搴斿叿鏈変互涓嬬壒鐐癸細鑹ソ鐨勯€忓厜鎬?/span>;鍦ㄤ笉褰卞搷鍏夊偓鍖栨椿鎬х殑鍓嶆彁涓嬶紝涓嶞/span>TiO2棰楃矑闂村叿鏈夎緝寮虹殑缁撳悎鍔汓/span>;姣旇〃闈㈢Н澶?/span>;瀵硅闄嶈В鐨勬薄鏌撶墿鏈夎緝寮虹殑鍚搁檮鎬?/span>;鏄撲簬鍥烘恫鍒嗙;鏈夊埄浜庡浐鈥擖/span>娑蹭紶璐?/span>;鍖栧鎯版€у拰鍏夌ǔ瀹氭€?/span>;鏉愭枡鏄撳緱锛屼环鏍间綆寤夈€侟/span>

璁惧宸ヤ綔鍘熺悊

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