Page 219 - 《精细化工》2023年第4期

2+
す 4 ᱌ ⍖ 㤺喑ぶ: Ά䚥䨹ᩦᕔ⽨ภ⩌➖◚⩢ღࣷ⩢॥䭱 Cu ᕔ㘪 g905g

aÿRHC喠bÿMRHC-0.1喠cÿMRHC-0.2喠dÿMRHC-0.3喠eÿMRHC-0.4喠fÿMRHC-0.5喠gÿMRHC-0.6喠hȠiÿMRHC-0.3喠jȠkÿMRHC-0.4
ఫ 2 ̺हᩫ๔Ժ᪝̸̺ह⊀ᏓΆ䚥䨹ᩦᕔ⩌➖◚⮱ SEM ఫ
Fig. 2 SEM images of biochar modified with different concentrations of zinc acetate at different magnifications

3
2
⼜হႁღ喑ܳݘͧ 265 m /g হ 0.125 cm /gȡᩦᕔऻ喑
⽨ภ◚℁㶕䲏⼜෋ߍ喑ϸႁअ͝ჹ喑䔆ᰶݖλ⩢ၽহ
⻨ၽౕᱽ᫆ڲ䘕ᔘ䕌э䓀 [19-20] 喑̭Ⴧ⼸Ꮣ̷ज෋ߍ℁
⩢ღȡ⩞ₑजⴒ喑ౕ⻨ၽэ䓀䕌⢴হ℁⩢ღ᫦䲏喑
MRHC ⩢ᲮⰥ䒰λ RHC ⩢Ხᰡхᐯȡ

㶕 1 ̺ह⊀ᏓΆ䚥䨹ᩦᕔ⩌➖◚⮱℁㶕䲏⼜হႁҀ⼜
Table 1 Specific surface area and pore volume of biochar
modified with different concentrations of zinc acetate
2 3
ᵤ৮ ℁㶕䲏⼜/(m /g) ႁღ/(cm /g)
ఫ 3 ̺ह⊀ᏓΆ䚥䨹ᩦᕔ⩌➖◚⮱ N 2 ॥䭱-㙞䭱ᰟ㏬ RHC 265 0.125
Fig. 3 N 2 adsorption-desorption curves of biochar modified MRHC-0.1 421 0.182
with different concentrations of zinc acetate
MRHC-0.2 432 0.189
̺ह⊀ᏓΆ䚥䨹ᩦᕔऻ喑⩌➖◚℁㶕䲏⼜হႁ MRHC-0.3 495 0.214
Ҁ⼜㻮㶕 1ȡຯ㶕 1 ᝭⹧喑ᄦ⾧⮪ᵤ৮̻ᩦᕔऻᵤ MRHC-0.4 474 0.206
৮䔈㵹℁䒰喑⌨ߍΆ䚥䨹जౕᵤ৮͚ᒏ᜽ᰡ็⮱ႁ MRHC-0.5 448 0.191
䯆㐀Ჱ喑䔆ψႁ䯆जͧ⻨ၽ᣽ӈ͝ჹ⮱э䓀䕇䖀喑 MRHC-0.6 428 0.184
Ҭᱽ᫆ڲ䘕⮱≨ᕔѺ◦㷘ٲܳݖ⩕ [18] ȡ䮼ⱭΆ䚥䨹
2.3 XRD ܳᲽ
⊀Ꮣ⮱෋ߍ喑ᩦᕔ⩌➖◚⮱℁㶕䲏⼜ٵࡴ倅ऻ䭺ѻ喑
䔆᭜఍ͧΆ䚥䨹⊀Ꮣ䓴倅чҬႁ≋㐀Ჱ౺൹喑℁㶕 ̺ह⊀ᏓΆ䚥䨹ᩦᕔऻ喑⩌➖◚⮱ XRD 䅞ఫ㻮
ఫ 4ȡຯఫ 4 ᝭⹧喑᝭ᰶ⽨ภധ⩌➖◚ౕ 2ș=21.98°
䲏⼜̸䭺喑䔆̻ SEM 㐀᳉̭㜡ȡMRHC-0.3 ڤᰶᰭ
3
2
๔⮱℁㶕䲏⼜হႁღ喑ܳݘͧ 495 m /g হ 0.214 cm /g喠 ั౴ᰶ̭͗๔⮱㵺ᄱცም喑䄡ᬻ⩌➖◚ัλᬍჇᒏ
2
MRHC-0.4 ⁎͸喑℁㶕䲏⼜হႁღܳݘͧ 474 m /g ⟣ᔮ [21-22] ȡΆ䚥䨹ᩦᕔ⽨ภ◚͸ऻ喑MRHC-0.1Ƞ
3
হ 0.206 cm /g喠Ⱕ℁͸̸喑RHC 㶕⣝ܧѻ⮱℁㶕䲏 MRHC-0.2ȠMRHC-0.3ȠMRHC-0.4ȠMRHC-0.5Ƞ