Correct

干净 vs 清洁

/ gānjìng vs qīngjié /
Strokes

Formula

1
干干净净

Definition

干净 and 清洁 both are Adjectives, which means [clearn; neat].

Example

干净 is colloquial., while 清洁 is literary.干净 can be reduplicated into 干干净净 while 清洁 cannot.
In examples ① and ②, the two words are interchangeable, but 干净 is more colloquial.
干干净净
1
Zhǔ
主妇
hěn
qínkuài
勤快
  
,
fángjiān
房间
shí
fēn
gānjìng
干净
  
(
qīngjié
清洁
  
)
  

The housewife is very diligent and keeps the room very clean.

2
Jīng
经理
shuō
  
,
táng
大堂
miàn
地面
tài
gānjìng
干净
  
(
qīngjié
清洁
  
)
  
,
yào
zài
sǎo
打扫
xià
  

The manager said that the lounge floor was not clean.It needs cleaning again.

3
ma
妈妈
ràng
háizi
孩子
shǒu
把手
gānjìng
干净
  

The mother asked her child to wash his hands clean.

In formal phrases,e.g.大搞清洁卫生 (do a thorough cleaning), 干净 is not used; while in everyday speech, 干净 is better.
4
ma
妈妈
ràng
háizi
孩子
shǒu
把手
gānjìng
干净
  

The mother asked her child to wash his hands clean.

清洁 sometimes can take an object, which is more literary; 干净 cannot.
5
Huánwèigōng
环卫工
zhèngzài
正在
qīngjié
清洁
shìróng
市容
  

Sanitation workers are cleaning the cityscape.

干净 also means "with nothing left over", and mostly functions as a complement.
6
Zhè
shǒujīn
手巾
shàng
de
hóng
yán
颜色
néng
gānjìng
干净
ma
  
?

Can the red spot in the towel be washed out?

7
ba
爸爸
ràng
háizi
孩子
wǎn
de
fàn
chī
gānjìng
干净
  

The father asked his child to eat up the food in his bowl.

8
Rén
le
  
,
shénme
什么
dōu
dài
zǒu
  
,
gàngānjìngjìng
干干净净
  

A man cannot take anything with him after he dies.

干净 also has a figurative meaning; when used in the negative, 不干净 means "having committed crime previously".
清洁 has no such meanings.
9
yǒu
qián
前科
  
,
shǒushàng
手上
gānjìng
干净
  

He committed crimes before.

干净 also has another figurative meaning, that is leaving no trace in doing evil.
清洁 has no such meanings.
10
wéi
以为
zhè
这次
zuòàn
作案
zuò
de
hěn
gānjìng
干净
  
,
shí
其实
zǎo
chūjiǎo
露出马脚
le
  

He had thought he committed the crime unnoticeably, but in fact he was exposed early.