Page 220 - 《精细化工》2023年第4期
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g906g ㏳ࡃጒ FINE CHEMICALS す 40 ࢤ
MRHC-0.6 ᬻ᭫็γᒵ็㵺ᄱᅃምȡڣ͚喑2ș=36.25° ౝэ䓀⩢㼐䉕⻨ၽȡ䔆ज㘪᭜⩞λ MRHC-0.3 ℁㶕
ั᭜ᰭᑧ㵺ᄱም喑ᵦᢛ PDF#99-0111 जⴒ喑2ș ౕ 䲏⼜ࣷႁҀ⼜Ό䒰๔喑䔆ψ㐀Ჱ➦ᒮߍγڣ̻⩢㼐
31.76°Ƞ34.42°Ƞ36.25°Ƞ47.53°Ƞ56.59°Ƞ62.85°Ƞ ⋟⮱ᣒ㼓䲏⼜喑Ӱ䔈γ⻨ၽэ䓀ȡₑ喑MRHC-0.3
67.94°Ƞ69.08°ั⮱ምܳݘᄦᏁᮣ䲏喍100喎Ƞ喍002喎Ƞ ॵ⣝ܧ㞜ສ⮱⩢ღ➦ᕔȡ
喍101喎Ƞ喍102喎Ƞ喍110喎Ƞ喍103喎Ƞ喍112喎Ƞ喍201喎喑䔆
ψም䘪᭜ ZnO 㵺ᄱም喑ΌᅞᘼঠⱭ Zn ͨ㺮В⅔ࡃ
➖⮱ᒏᐼႅౕλ⩌➖◚㶕䲏ȡ䔆ψምᒏ⮱ܧ⣝䄡ᬻ
ZnO ̻⽨ภ◚ߌฺवౕ̭䊤喑́㐀ᮣᏓ䒰倅喠ह
ᬣౕ MRHC-0.1 Ƞ MRHC-0.2 Ƞ MRHC-0.3 Ƞ
MRHC-0.4ȠMRHC-0.5ȠMRHC-0.6 ఫ䅞͚䘪⇎ᰶ
㻯ᄌݝᱯም喑䄡ᬻฺवᱽ͚᫆⇎ᰶᱯ䉕喑㏜Ꮣ䒰倅ȡ
ఫ 4 ̺ह⊀ᏓΆ䚥䨹ᩦᕔ⩌➖◚⮱ XRD 䅞ఫ
Fig. 4 XRD patterns of biochar modified with different
concentrations of zinc acetate
2.4 ⩢ࡃ႓ᕔ㘪≸䄂
2.4.1 ᓗ⣜мႶ≸䄂
̺ह⊀ᏓΆ䚥䨹ᩦᕔऻ喑̺हម䕌⢴̸喑RHC
হ MRHC ⩢Ხ⮱ᓗ⣜мႶᰟ㏬ຯఫ 5 ȡఫ 5 ͚喑
ऱ͗ᵤ৮⮱ CV ᰟ㏬ᒏ⟣ॵㆨⴖᒏ喑́䘪⇎ᰶᬻ
᭫⮱ምᒏܧ⣝喑䄡ᬻࣺᏁ䓴⼸᱗ࣾ⩌⅔ࡃ䔅ࣺ࣌Ꮑ喑
ΌᅞᘼঠⱭᵤ৮͚⇎ᰶ䊊⩢ღ喑ڤᰶࣹ⩢ᅯ⩢ღ➦
ᕔ [23-25] ȡCV ᰟ㏬䲏⼜䊷๔喑ڣ℁⩢ღ䊷๔ȡ̻ RHC
Ⱕ℁喑MRHC ⮱ CV ᰟ㏬䲏⼜ᬻ᭫ߍ喑Όᅞ᭜
䄡㏼Ά䚥䨹䉌䒪ᩦᕔऻ⮱⽨ภ◚ڤᰶ℁⾧⮪㏱ ఫ 5 ̺हម䕌⢴̸ RHC হ MRHC ⩢Ხ⮱ CV ᰟ㏬
Fig. 5 CV curves of RHC and MRHC electrodes at different
RHC ᰡ倅⮱℁⩢ღȡᄦ℁ఫ 5aȠb喑ᒀម䕌⢴ϻ
scan rates
5 mV/s 㜠 50 mV/s ऻ喑CV ᰟ㏬अࡃ䒰๔喑䔆ͨ
+
㺮᭜ͧ倅ម䕌⢴̸⩢㼐⋟͚⮱ K ᬍ∂ࣷᬣព 2.4.2 ϑ≮䭨ោ≸䄂
᪐㜠⩌➖◚ڲ䘕ᒏࣹ⩢ၽᅯ⩢ღ喠ᄦ℁ఫ 5bȠc ⩢ࡃ႓䭨ោ䅞喍EIS喎जⰡ㻯䔝⩢ϑ≮Ԏतౕ
जⴒ喑ᒀម䕌⢴ࡴ㜠 100 mV/s ऻ喑CV ᰟ㏬अᒏ ⩢Ხڲ䘕ႁ䯆㐀Ჱэ䔿⮱᪡͗䓴⼸喑Ꭳजٲܳᤚ
Ⱕᄦ̺๔喑䔆㶕ᬻ⩢Ხ⽠Ⴧᕔ䒰ສ喑हᬣᰟ㏬ϺԊ ⩢Ხ⮱ٲ⩢⩢䭨➦ᕔȡ⽨ภ⩌➖◚⩢Ხ⮱ EIS ຯఫ 6
–5
ᠮㆨⴖᒏ喑䄡ᬻᵤ৮⮱⩢㢤э䓀᩵⢴䒰倅喑Ժ⢴ᕔ 喑≸䄂ម㠰డͧ 1.0×10 ~100 kHzȡ
㘪䒰ສȡ䮼ⱭΆ䚥䨹⊀Ꮣ⮱ߍ喑CV ᰟ㏬䲏⼜ॵ⣝ ⩞ఫ 6 जⴒ喑⩞λ倅䶾ࡧ⩢㼐䉕⻨ၽग㘪ព᪐
ٵ๔ऻۼᄼ⮱䊸߬喑ѳΆ䚥䨹ᩦᕔᵤ৮⮱ CV ᰟ ݝ⩢Ხ㶕䲏喑ᩲ倅䶾ࡧഌ⩢䭨ᒵᄼ喑⩢䭨թᣒ䓾λ
㏬䲏⼜䘪℁ RHC ๔喑䄡ᬻΆ䚥䨹㘪᭫㦄倅⽨ภ⩌ 0喑㔹ౕѻ䶾ࡧ喑⻨ၽजព᪐㜠⩢Ხڲ䘕喑ᩲѻ䶾ࡧ
➖◚⮱℁⩢ღȡ ⩢䭨թ䒰๔ȡ倅䶾ࡧ喑ᰟ㏬̻䒡ϑ◦А㶕⩢㼐⋟
ϻఫ 5 जВⰸܧ喑MRHC-0.3 ⩢Ხڤᰶ䒰๔⮱ ⩢䭨喑ᑔᒏࡷళⰡᒱ᭜⩢㢤䒙⼨⩢䭨ȡϻఫ 6 ఫ
CV ᰟ㏬⼜ܳ䲏⼜喑Ꭳ́ॵ⣝ܧᄦ⼝⮱ㆨⴖᒏ喑䔆㶕 जࣾ⣝喑ᰶᵤ৮⩢㼐⋟⩢䭨Ⱕ䓾喑㔹⩢㢤䒙⼨⩢
ᬻ MRHC-0.3 ⩢Ხᰶ䒰倅⮱℁⩢ღ喑㘪์Ⱕᄦᔘ䕌 䭨Ⱕጛ䒰๔喑̻᱗ᩦᕔ⩌➖◚Ⱕ℁喑ᩦᕔऻᵤ৮⮱
